int swap_add(int *p,int *yp)
{
int x = *xp;
int y = *yp;
*xp = y;
*yp = x;
return x + y;
}
int caller()
{
int arg1 = 534;
int arg2 = 1057;
int sum = swap_add(&arg1,&arg2);
int diff = arg1 - arg2;
return sum * diff;
} 
